Currency detectors



April 27, 1965 D. M. DANKO 3,180,491

CURRENCY DETECTORS Filed Jan. 24. 1961 22 Sheets-Sheet 1 Q N m w 3 g N N INVENTOR 001204.40 lfiY-OANKQ Apnl 27, 1965 D. M. DANKO 3,130,491

CURRENCY DETECTORS Filed Jan. 24. 1961 22 Sheets-Sheet 2 April 27, 1965 D. M. DANKO 3,180,491

CURRENCY DETECTORS Filed Jan. 24. 1961 22 Sheets-Sheet 3' IN VEN TOR HON/MD M. DAN/1 0 'W ATT).

April 27, 1965 o. M. DANKO CURRENCY DETECTORS 22 Sheets-Sheet 4 Filed Jan. 24. 1961 April 27, 1965 D. M. DANKO CURRENCY DETECTORS 22 Sheets-Sheet 5 Filed Jan. 24. 1961 IN V EN TOR DON/4L 0 M. DAN/(0 April 27, 1965 D. M. DANKO 3,180,491

CURRENCY DETECTORS Filed Jan. 24. 1961 22 Sheets-Sheet 6 IN V EN TOR 004 440 M. DAN/(0 5r W4 ATT'K April 27, 1965 n. M. DANKO CURRENCY DETECTORS 22 Sheets-Sheet 8 Filed Jan. 24.

Q3 NQ INVENTOR DONALD M- DAN/(0 Arr).

A ril 27, 1965 b. M. DANKO CURRENCY DETECTORS 22 Sheets-Shee't 9 Filed Jan. 24. 1961 wmm INVENTOR 170M440 M. DAN/f 0 1m mw x A nl 27, 1965 n. M. DANKO CURRENCY DETECTORS 2,2 Sheets-Sheet 10 Filed Jan. 24. 1961 INVENTOR Dorm/.0 M. DAN/(0 April 27, 1965 D. M. DANKO CURRENCY DETECTORS g3 Sheets-Sheet 11 Filed Jan. 24. 1961 Sum INVENTOR D0/VALDM.0ANKO ATTYI 22 Sheets-Sheet 12 D. M. DANKO CURRENCY DETECTORS A ril 27, 1965 Filed Jan. 24.

A rxl 27, 1965 n. M. DANKO 3,130,491

CURRENCY DETECTORS Filed Jan. 24. 1961 22 Sheets-Sheet 13 IN V EN TOR DONAL 0 M. DAN/(0 April 27, 1965 D. M. DANKO 3,180,491

CURRENCY DETECTORS Filed Jan. 24. 1961 22 Sheets-Sheet 14 INVEN TOR 001W 0 M DAN/(0 953 5r WATT'Y.

April 27, 1965 D. M. DANKO 3,180,491

CURRENCY DETECTORS Filed Jan. 24. 1961 22 Sheets-Sheet 16 3r WWW April 27, 1965 D. M. DANKO 3,180,491

CURRENCY DETECTORS Filed Jan. 24. 22 Sheets-Sheet 17 Arr)? A ril 27, 1965 u. M. DANKO 3,180,491

CURRENCY DETECTORS Filed Jan. 24. 1961 22 Sheets-Sheet 18 #HL F76. 43

M92 /6.90 /ea 95.; k 2M 1 76- 4 0 I668 M60 INVENTOR DONALD M. DAN/(0 A nl 27, 1965 0. M. DANKO 3,180,491

CURRENCY DETECTORS Filed Jan. 24, 22 Sheets-Sheet 1.9

INVENTOR nor/141.0 M. DAN/(0 NQQ t 3 A 38 K mwwm X 51 Q @Q April 27, 1965 D. M. DANKO CURRENCY DETECTORS 2,2 Sheets-Sheet 20 Filed Jan. 24. 1961 

2. APPARATUS FOR IDENTIFYING AND ACCEPTING AUTHENTIC CURRENCY COMPRISING, A MEMBERS CAPABLE OF GRIPPING AND MOVING A BILL REARWARDLY ALONG A PREDETERMINED PATH TOWARD A CASH BOX FOR ACCEPTANCE AND FOR REMOVING SAID BILL FORWARDLY ALONG SAID PREDETERMINED PATH AWAY FROM SAID CASH BOX WHEN UNACCEPTED, A MAGNETIC HEAD MOUNTED AT ONE SIDE OF SAID PREDETERMINED PATH, A CRICUIT COACTING WITH SAID MAGNETIC HEAD AND THE MAGNETIC FACE OF A BILL TO PROVIDE AN ACCEPT SIGNAL AT THE BILL AT MOVED REARWARDLY ALONG SAID PREDETERMINED PATH IF THE BILL IS AUTHENTIC AND OF PREDETERMINED DENOMINATION, A LAMP MOUNTED AT THE OPPOSITE SIDE OF SIAD PREDETERMINED PATH, A LIGHT-SENSITIVE ELEMENT MOUNTED AT SAID OPPOSITE SIDE OF SAID PREDETERMINED PATH TO RECEIVE LIGHT DIRECTED BY SAID LAMP AGAINST AND REFLECTED FROM THE OPPOSITE FACE OF A BILL MOVING ALONG SAID PREDETERMINED PATH TOWARD SAID CASH BOX, SAID LAMP AND SAID LIGHT-SENSITIVE ELEMENT BEING SPACED APART, SAID LAMP AND SAID LIGHT-SENSITIVE ELEMENT BEING INTERMEDIATE SAID MAGNETIC HEAD AND SAID CASH BOX, A SWITCH INCLUDING AN ACTUATOR FOR ENGAGEMENT BY THE LEADING EDGE OF A BILL, SAID ACTUATOR BEING INTERMEDIATE SAID CASH BOX AND SAID LAMP AND LIGHT-SENSITIVE ELEMENT, A MOTOR CAPABLE OF CAUSING SAID BILL-GRIPPING MEMBERS TO MOVE A BILL REARWARDLY ALONG SAID PREDETERMINED PATH FOR ACCEPTANCE AND FORWARDLY ALONG SAID PREDETERMINED PATH WHEN UNACCEPTED, AND A SECOND CIRCUIT RESPONSIVE TO CHANGES IN THE AMOUNT OF LIGHT RECEIVED BY SAID LIGHT-SENSITIVE ELEMENT TO PROVIDE A SECOND ACCEPT SIGNAL AS THE BILL IS MOVED REARWARDLY ALONG SAID PREDETERMINED PATH IF THE BILL IS AUTHENTIC AND OF PREDETERMINED DENOMINATION, SAID SECOND CIRCUIT INCLUDING A THRESHOLD DEVICE CAPABLE OF INITIATING SAID SECOND ACCEPT SIGNAL WHEN A PLURALITY OF ACTUATING SIGNALS ARE COINCIDENTALLY APPLIED TO SAID THRESHOLD DEVICE, SAID SECOND CIRCUIT HAVING A PORTION RESPONSIVE TO CHANGES IN THE AMOUNT OF LIGHT RECEIVED BY SAID LIGHT- 